Deep-well pump.



B. DEWOODY.

DEEP WELL PUMP.

APPLICATION FILED A1=1 .1a.19oa.

Patented July 20, 1909.

2 sHEBTs-SHBT 1.

\ F\G-E"" INVENTOP BY His AT1-onwaar W/-rNessss B. DEWOODY.

DEEP WELL PUMP.

APPLICATION FILED APR. 18,1908.

Patented July 20, 1909.

2 SHEETS-SHEET 2.

am. m mm UIT BYRON DEWOODY, OF FRANKLIN, PENNSYLVANIA.

DEEP-WELL PUMP.

To all whom it may concern:

Be it known that I, BYRON DnwooDY, citizen of the United States,residing at Franklin, in the county of Venango and State ofPennsylvania, have invented certain new and useful Improvements in DeepWell Pumps, of which the following is a specification, reference beinghad therein to the ac companying drawing.

My invention relates to improvements in deep well pumps, theconstruction and operation of which will be fully understood from thefollowing specification, reference being had to the accompanyingdrawings which form a part hereof and in which:-

Figure 1 is an elevation, partly in section, of the working-barrel andvalves employed in my deep well pump. Fig. 2 is a vertical section ofthe working-barrel, showing also the piston in section. Fig. 3 is avertical section of the upper portion of a piston, showing theconstruction of a drain-valve which may be employed with my improvedpump. Fig. 4 is an elevation of the upper portion of a well which isequipped with my device. Fig. 5 is a vertical section of the lowerportion of a well which is equipped with my invention.

My improved deep-well pump is designed especially to be applied to oilwells, and to obviate the necessity of using tubing which now formsaportion of the equipment of such wells, and to thus materially cheapenthe cost of their construction and maintenance.

The construction of my improved device is substantially as follows Iemploy a working barrel 1, of the usual form and construction, but inassembling the piston I place the cups 2 thereon so that a portion ofthem face upward and a portion thereof face downward. The valve-case 3,at the top of said piston is of special construction, the wall thereofbeing imperforate, so that the oil does not escape therefrom into thetubing, as is the case in the usual form of piston, but passesupward,-as indicated by the arrows-through the hollow sucker-rod orconduit 4, which is a particular feature of my invention. Theworking-barrel may be anchored, or held down by means of tubing 5secured to the bottom of barrel 1, and, if desired, tubing 6 may beextended upward from the working barrel to serve as additional weight oranchorage.

A flexible connection 7 may be attached at or approximate to the upperend of pipe 4 Specification of Letters Patent.

Application led. April 18, 1908.

Patented July 20, 1909.

Serial N o. 427,918.

for the purpose of conducting oil to a receivmg tank.

The necessity of withdrawing the working r barrel from the well oftenarises, and for the purpose of supplying means for doing this, I

place a collar 8, of special construction at the upper end of theworking barrel, the opening in which collar is contracted so as toengage the cage 3 of the piston, when said piston is drawn upward, andprevent its withdrawal from said barrel. By this construction, the

working barrel may be withdrawn from the well by means of the pipe orconduit 4.

When the working barrel is to be withdrawn from the well, as aforesaid,it is desirable that the fluid should be drained from the pipe 4, and asa means for accomplishing this,- I provide an automatic drain-valve 9,at thei upper end of the piston, the construction oft which is asfollows: Within the upper portion of the chamber of the valve-cage 8, Iplace ai sliding sleeve, 9 which is held normally in the position shownby means of the spiral spring 11, a pin 12 passes through said sleeve,and

each end thereof projects through the slots 13 in the neck of saidvalve-case: Vhen the piston is drawn upward, the projecting ends of pin12 come in contact with the lower face of the annular projection 14 ofthe collar S,

which forces the sleeve downward and uncovers the holes 15, throughwhich the fluid in pipe 4 readily escapes. Holes 15 in the upper end ofthe Working-barrel permit the escape of fluid therethrough to facilitatethe drainage aforesaid.

The standing valve 16, at the lower end of the working barrel, is of theusual construction, the function and operation of which are well knownto those familiar with oil pumping devices.

My piston is preferably of the ball type, and the ball 17, whichoccupies cage 3, prevents the regurgitation of the fluid.

The tubular rod 4 may be attached to any suitable means for operatingthe piston, but I have here shown a walking-beam 18, such as is oftenemployed for this purpose.

What I claim and desire to secure by Letters Patent is:

1. In a deep-well pump, a working barrel located in proximity tothebottom of the well, means for anchoring said barrel, a standing valvelocated in said barrel at the bottom thereof, a piston in said barreladapted to the upward passage of oil therethrough,

means in said piston preventing the regurgitation of said oil, a tubularrod attached to said piston adapted to the purpose of operating the sameand also as means for conducting oil from said Working barrel to thesurface of the ground, and a drain-valve positioned above said pistonand adapted to automatically drain said tubular rod When,

the same is being Withdrawn from the Well.

2. In a deep-Well pump, a Working barrel adapted to be positioned inproximity to the bottom of the Well, a cheek-valve located in the lowerportion of said barrel, in combination with a piston consisting of atubular stern having a plurality of oppositely-faced packing-cupssecured thereon, an enlarged,

imperforate valve-chamber positioned at the upper end of said tubularstem, a check-valve in said chamber, means for conducting Huid from saidchamber to the surface of the ground, said Huid-conducting means beingalso adapted as operating means for said piston, and means positionedabove said chamber adapted to automatically drain said fluid-conductingmeans when the same is Withdrawn from the Well.

In testimony whereof I aHX my signature in presence of tWo Witnesses.

' BYRON DEWOODY. Witnesses:

GILsoN SHAFFER, E. R. INMAN.

